Type-writing machine.



J. vC. MULAUGHLIN.

TYPE WBITING'MAOHI-NE. APPLICATION FILED um?, 1909.

WITNESSE'S' 44uNitin-1D sirATi-s" PATENT oFFi-esi 1 JOHN c. MGLAUGHLIN. OF `rERsEY CITY. NEW` JERSEY, AssiGNOR To UNDERWooiJ TYPEWRIrER COMPANY, OF NEW YORK, N.- YJ, A CORPORATION OF 'NEW TYPE-WRITING' MACHINE.

Specification of Letters Patent.- Patented J 25,

Application nl ed January 7, 1909. Serial No. 471,090.

To all 'it my oo'rwem:

- lle itknown that l. Joux MCL.\i'oiimia, a citizen of the United States. residing in Jersey City, in the county of Hudson and State of New Jersey,- have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification.

This i-n\'entiou relates to a system of changeable denomination keys ot' tabulating mechanisms of typewriting and other iiistru- Aaeters or designations. secured thereon. 'A

ments, disclosed in my applications- Nos. 401,197, tiled November 8, 1907 and 45(3,720, filed October S, 1908. ln said applications the denomination keys of the tabulating mechanism'are ten innumber, -the tirst four being of ordinary construction, and the other ke 's beinfr )rovided with chan cable desi@- D t? nations, 'so thatthey serve for denominational work up to millions', with punctuation or dividing' marks; and the capacity of the mechanism may be increased to hundreds oimillions by re-adjusting the changeable keys, v to omit the punctuation marks.

Tlie object.: of the present invention is to j epi-Ovide a .system of denomination keys, serviceable not only for ordinary notation, but also for special notation.

VI provide all of the ten keys with changeable designations, one set of designations to serve for ordinary denominations up to ten millions, vwith punctuation marks between the4 hundreds and thousands, and also be-` punctuation marks between the tween the-hundreds ofthousands and millions; and-the other set of designations serving for special notation, to indicate measures or the like, as for instance, pounds, shillings and pence., with intervening divisor keys, according 4to the British monetary system.A

In theaccompanying drawings, FigureI 1 is a diagrammatic plan of a set of changeable denomination keys.r In the first row of said figure the keys are adjusted'for ordinary notation, with punctuation marks as aforesaid. In the second row the same keys are adjusted according to the Britishl monetary system up to one-thousand pounds, with nce and shillings, and also between the shi lings and pounds. Fig-2 is a perspective view of ,the component parts of the key.' Fig, 3 is a diagrammaticI plan view' illustratingv different 'are exhibited.

stages in the rota-tion of the shutter for' changing from one set. of designatlonsto 'another-set. Fig. 4 is a sectional side elevation ofthe key: and Fig. 5 isa diagrammatic elevation of the tabula-tor mechanism showing the key connected to va denomination stop.

In the drawings'l have illustra-ted the changeable key of' the same construction as in my application No. 456,720 abovg referred to, comprising a body or seat 1, and a churacter bearingdisk 2,' having two o'f-c'liai'- shutter 3 in theform of aiiannular casingr is mounted to nn-u upon the seat 1. and rests' A transparent disk 6 iests upontlie The disk (i is eontinedbetweeii 'theslijutter and a fiauge 8 provided-upon the cap. The.

.g eap' is also provided with nibs i) to catch under the seat. 1 to retain thecapv in. place. 'l`he .shutter is retained in either of its adjusted positions by means of a spring deteni, 10 engaging with a recess 1l in the shutter. -i 'lhe key 1 is carried upon the usual lever i2. eonneeted to a rod 13 provided with a-deuominatiou stop 14 at its upper end,'to engage with a column stop l5 carried upon the usual carriage.

At Fig. 1, I have shown a set of denomi-` natioulre'vs all of which have. changeable designations thereon. ln the upper iow of said figure the keys 4have been adjusted to exhibit the set of designations upOnt-he upper.

half of the character disk, comprising plain numbers, to serve for 'ordinary'denoinina-4 tional work 4up to ten millions, with punctuation marks between the hundreds and thousands and also between the hundredsof thousands 'andinillions. By iving each shutter 3 a half revolution t-h'e designations for the notation o f pounds, abillings and pence, with divisor keys between esigu'atioas 'upon the lower half Of the 'character-disk Ilhave shown these loweiyrj x 10.

the pounds and shillings, and also between- Y nations serving for ordinary notation, andvl -claimt i l. In n, tabulating, mechanism, they com'- system.

The keys may. 'h ve'ver be employed (for other-measuresfor specialnotat-ion.- y i i Having thusgdescrlhed my inventlon; vI

the other 's'etiof designations servingfor notation of pounds, shillingsfand pence, with intervening divisor keys, according tothe British monetary "system, substantially as described. .-1 3. In a tabulating mechanismpi system of changeable tabulator keyshaving'two sets'of characters, one set for denominational workf' up to ten m11l1ons, wlthjpunctuation .marks v| between the hundredsnn'd thonsandsfand f between the hundreds o f'thousands and-milo n shillings,l and alsobetween, the 'sh lions, andthe other' set forthe 'British mone Y l `tary Vsystem 'up to one thousand pouxids, with punctuation .marks between' the pence and lings'and pounds. f

' 4. AIn a tabula-ting mechanism, the Vclzv'oml'ii' nationwith'a set offten unchangeable denomination' stops, of a set of changeable 'tabulator keys connected' to said stops and vprovided with two sets 'of characters, one

to serve fori` denominational wprk upto ten millions,

lions, andthe-other to serve for the Brit- Aish monetarysystem upt6"one thousand pounds, with punctuation marks betweenj the pence Aand shillings, and alsooetwecn the shillings' and Jounds.

`5. In a tahul nation With'lV syste of unchanging denominational stops, of a system of keys connected to said stops, the keys havin@ changeable designations thereon, one set oft: designations serving for ordinary notation with punctuation marks or the like 'between-the oups fof denomin'ations,three figures in each group, and vthe othert into irregular groups separated by punctuaset Vof vdesignations divided tion marks` or the like. o 'JGHN C. lVitnesses: z JOHN SEI'FERT, 7*. 'IC- Fnaxxnon'n MCLAUG'HLrN.

n with punctuation? marks betwcerithe hundreds and thousands, nd also betweenthe hundreds'of thousands and' milatin 'nechnisim'the combil 

